Improvement in hinges



.UNITED STATES `PATENT Y SAMUEL R.DUMMER, on NEW Yoann. Y. j

IMPROVEMENT IN HINGES.

Specilication forming part of Letters Patent No. 49,511.. dated August 22, 1865.

\Hinges; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

The present invention relates to a certain new and peculiar attachment to hinges, and particularly adapted to those used for han gin g blinds and shutters to and upon the exterior of houses, buildings, &c., and therefore in the following specification will be described with reference thereto, although it can be as readily applied to hinges used for other and various purposes; and it has forits object the locking or fastening of the blind, when in an open position, by the movement ofthe hinge itself, without the necessity of using a separate and distinct device therefor, as has heretofore been the case. This result I secure by the present invention in anovel and peculiarly simple manner, as will be now fully described, reference being had to the accompanying plate of drawings, in which- Figure l is a front view ofthe hinge, showingit applied to ablind in an open position; Fig. 2, a transverse horizontal section through the hinge, taken in the plane of the line a: a2, Fig. l; Fig. 3, a view of the lower edge of the hinge when opened; and Fig. 4 a similar view, showing the hinge closed or with its sides turned one upon the other. Y

a a in the drawings represent a hinge made of brass, iron, or any of the ordinary metals or materials used, and of any desired size and style, having a series of apertures, b b b, in each of its parts or sections c and d, for the insertion ot' screws or other suitable means, by which they can be securely fastened to a blind, shutter, or any other device desired.

To and in the upper portion of one of the` parts, c, of the hinge is hung upon a pivot,f, thereof a swinging arm or bar, g, made of sufcient length to reach a short distance below the lower edge of` the hinge, and terminating in a square-shaped end piece, h, the arm being so hung that it will lie perfectly iiat, or nearly so, upon `the surface -of. the hinge and in contact with the same throughout its whole length.

Upon the loweredge of the hinge, andupon eachside of thesquareshaped end of the swinging bar, are two horizontal projecting pieces, l and m, of same width, or nearly so, as the thickness of the square end, and at a distance apart equal to the width of the swinging bar, so that when the hinge is opened, as seen in Figs. 1, 2, and 3, the barwill be held in and between the two contiguous or inner 'edges of the same,

their opening being in the same plane as that of the bar hung upon the hinge, as described. One of these projecting pieces, Z, is secured to and upon'the part c of the hinge, and the other upon the part d, by means of solder or in any other proper manner, and so as to occupy the relative positions above specified.

In the application of my improved hinge, constructed as has been described, to any of the j ordinary blinds or shutters used upon houses, buildings, &c., the part of theihinge in which theswin gin g arm is hung is fastened by screws, or in any other proper manner, to the side of the windowopening, and the other partto the edge of the blind or shutter, as the case may be, the swinging arm, when the blind is opened from the window, in which position` the parts of the hinge are in one straight line, hanging 1n and between the projecting pieces upon the lower edge thereof, thus preventing the blind from being closed until the said bar has been disengaged or lifted sufficiently from and between the said pieces to allow the piece attached to the part of the hinge on the blind to pass by the same, when the bar, as the hinge is closed or` shut, is held in and between the two, as seen in Fig. 4, the square end or portion of the sameprojectin g from the lower ends thereof.

r r is a guiding band or clasp attached to the part of the hinge in which the swinging arm is hung and over and across the same, but at a suiiicient distance to allow the requisite outward play to the same from the surface of the hinge, it imparting steadiness and evenness to the movement of the arm.

From the above description it is apparent that, with my new hinge applied to a blind or shutter, as the blind swings open upon its hinge the projecting piece m upon the blind portion necessarily impinges agansttthe hangisgbar or bolt, gradually lifting the same until both parts ofV the hinge are in one continuous straight line, or nearly so, when the bolt by its own weight drops into the space between the projecting lips or piece, as before described, thus preventing the closing,` of the blind until raised or disengaged therefrom, as is evident without further description.

It is apparent that there may be various modifications in the detail arrangement and construction of the lockingl attachment to a hinge herein described, and also that, in lieu of a swinging bolt, a sliding bolt may be used,

- it being only necessary that the projecting portion or piece on the swinging part ofthe hinge l should be made of such a shape as to suiiciently lift the bolt to allow the hinge to come to its full open position, when the bolt will drop by its own weight into its proper. seater opening, in substantially the same manner as has been described for the swinging bolt, locking the hinge until raised therefrom, asis evident.

I claim as new and desire tosecnre by Letters Patent- The hinge-bolt g, constructed and applied substantially as and for the purposes set forth. TheV above speciiication of my invention signed by me this 26th day of May, 1865.

SAML. R. DUMMER.

Witnesses I M. M. LIVINGSTON, WM. F. MGNAMARA. 

